In 1992 world leaders met at the Earth Summit in Rio de Janeiro to reaffirm the Declaration of the United Nations Conference on the Human Environment that was established on June 16, 1972 in Stockholm. The meeting resulted in the adoption of Agenda 21 by the member states which is a framework for the transition to a more sustainable world. In 2012 the members gathered to assess and reaffirm the importance of progress towards the efforts of Agenda...